Improvement in buhl-saws



E. BRWN.

Buhl-Saw.

NO- 163,295. Y Y 1 Patented May/18,1875:

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gripes, or holding devices,

NrrED Sra'rns Arnlv'r .IMPROVEMENT IN BUHL=SAWS.

Specification forming part of Letters Patent No. 163,296, dated May 18, 1875; application filed January 9, 1875.

To all whom 'it may concern:

Be it known that I, EPHRAIM BROWN, of Lowell, in the county of Middlesex and State of Massachusetts, have invented certain new and useful Improvements in Buhl-Saws, of which the following is a full, clear, and exact description, reference being had to the aecompanying drawings making part of this speciiication, in Which- Figure l represents a side elevation; Fig. 2, a detached section of the hollow handle or saw-case and certain of the other parts, showing, also, one of the shouldered saw clamps, the hushed tube into which the gripe is inserted, and which, at the operating end, enters and forms a part of the handle, the side shank by which the tube or this and the handle are connected each to one of the frame-sides, or to an extension connected therewith. Figs. 3 and 4t represent opposite detached sections of the hushed tube audits frame-side-connecting shank with the shouldered and notched saw-gripe as they are applied in practice. Fig. 5 represents a side elevation of one of ihe shouldered and notched saw-gripes detached, showing the notch which engages with the inner end of the tube-hushmg.

Ilhis invention relates to certain new and useful improvements ,in buhl-saws, whereby the latter are rendered more useful and convenient than those heretofore in use, and cheaper in proportion to the mechanical construction and combinations of certain of the parts, one or more of which serve a double purpose, and thereby contribute to the production of more than one result, co-operatin g with other parts, as hereinafter more fully explained.

My invention consists, first, of the jointed frame-sides B of the huhl-saw, in combination with and connected hy links or pivoted plates c, and with and held in position and released by sliding ferrules d, so as to render the frame capable of being folded together, or one part over the other, and thus to occupy but about one-half the room or space one way, and thus to be much more convenient for packing and carrying.

Second, my invention consists of the tubular hushed socket E, constructed with an end bushing, e, which forms a holdin g-shoulder, 4, for the clamp or gripe F and its notch. a, and with a side shank, H, by which to connect the socket with the end D of either frame-side B, as hereinafter described.

Third, my invention consists of the spring clamp or gripe F, constructed as shown, with shoulders g and a holding-notch, n, in combination with the hushed socket E and setscrew h, and operating as hereinafter more fully described.

Fourth, my invention consists of the combination of the hollow capped handle K with the tubular hushed socket E, having a holdingshoulder, 4, for the notch n of the gripe F, a connecting-shank, H, and a set-screw, h, and with the shouldered and notched clamp or gripe F and frame-side B, substantially as hereinafter fully described.

In the said drawings, B represents the framesides, which are jointed at or near their centers, and connected by links or plates c, which work in slots in and are pivoted to each division of the frame-sides, so as to allow the two parts of the frame to be folded togetheri into compact form for convenience of boxing, packing, or carrying, and when the thus jointed and linked or plate-connected frame-sides are unfolded or opened, a sliding ferrule, d, on each side B is slid over the joint, thus. hold'- in g each frame-side in position for use.. The frame-sides are retained at a suitable distance apart by a well-known cross-bar, A, and the tension or strain is brought upon the saw by a common screw-rod, b, applied to the upper or outer endsof the frame-sides. To release the jointed frame-sides, as when they are to be folded together, the ferrules d are slid or moved back from and uncovering each joint, when the frame is easily and conveniently folded together, as before stated. To the ends of each of the frame-sides B, opposite to where the screw-rod b is applied, or to extended ends l), I apply to each a tubular hushed socket, E, by means of a side shank, H, which enters the end of each frame-side or its extension D, and this holds each socket iirmly in position.

Each socket E is constructed with an interior end bushing, e, which forms a holdingshoulder, 4, for the clamp or gripe F and its -forms a case or receptacle for spare saws,when

the cap L is applied, as shown, and the shouldered gripe F is inserted in the inner end of the hushed tube. The shoulders on all sides of the head oi' the gripe, by predetermined construction ofthe latter, Yprevent thin .sawsY from passing out of the case between the sides ot' the gripe and the bushing of the socket when the gripe ts loosely. Set-screws h, passing through the side of each hushed tube, are to press on the side of each gripe, opposite each notch n. and close the gripe tightly upon the sides of the saw-ends and hold them iirmly, while the notch n and the shoulder 4 of the hushin g prevent the gripe being withdrawn when the saw is strained or tension brought upon it by the screw-rod b. The clamp or gripe F, which is constructed with shoulders g on all sides of the head, may, in some instances, be or become loose in the bushing of the socket E; butin that event the shoulders g will operate as they were designed,.and prevent the escape of thin saws from the case or hollow handle at that point. This clamp or gripe F is intended to be used only in combination with the tubular hushed socket E and its set-screw h, to clamp and hold the saw and to prevent the withdrawal of the gripe, as hefore described. Instead of the inner shoulder ot' the bushing e, it is evident that a pin passing through the side of the socket and entering the notch a of the gripe might be resorted to as equivalent means for holding in the gripe. The hollow capped handle Kis constructed as shown, its cap L applied to the outer end, and the extension f of the tubular socket E inserted tightly in the inner end or" the handle. The side shank H is then driven or forced into the end of the frame-side or into the end D, as shown, and the bushing E is affixed to the other end D in like manner. The gripes F are then inserted in the hushed end ot' each tubular bushing E, with the shoulders of the gripe-head fair against the end of the bushing, and the notch n on the bushing and its shoulder 4, the ends of the saw I placed between the jaws of the gripe, the set-screws h turned in, pressing the notch n onto the rise of the bushing c, and closing the jaws of the gripe tightly onto the saw-ends, and holding them iirmly. The screw-rod b or its nut is then turned to draw the upper ends of the frame together, and thus to force the opposite and saw-connected ends apart and tighten or strain thesaw. The extension f Vand theside shank H are the means for connecting theY hollowVV capped handle with the tubular hushed socket and the frame-side B, while the bushing e, with its shoulder 4, and the notch u and set-screw h ofthe gripe are the means for connecting the latter with the hushed socket, thus forming the new combinations of co-operative elements, each combination of elements producing a new, useful, and unitary result.

I claim as my invention- 1. In a buhl-saw frame, the jointed sides B, in combination with and connected by links or plates c, held and released by ferrules d, substantially as and for the purpose described.

2. The tubular socket E, constructed as described, with an endY bushing, e, having a shoulder, 4, and with a side shank, H, and a set-V screw, L, in combination with the frameside B, substantially as described.

3. The spring clamp or gripe F, constructed as described, with shoulders g and a notch, n, in combination with the hushed socket E and its set-screw h, and clamping and holding the ends ot' the saw, substantially as described.

4. The combination of the hollow capped handle K with the tubular bushed socket E,

having a shoulder, 4, a frame-connecting shank, H, and a set-screw, h, and with the clamp F, having a notch, a, and shoulders g, and with the frame-side B, substantially as and for the purpose described.

EPHRAIM BROWN. Witnesses:

JOHN E. CRANE, GEORGE F. SALMON. 

